<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
        <!-- 搜索添加 -->
        <el-row :gutter="20">
            <el-col :span="9">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
            </el-col>
        </el-row>
        <!-- 用户列表区域 -->
        <el-table :data="userlist" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
                <!-- 作用域插槽 -->
                <template slot-scope="scope">
                    <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                    </el-switch>
                </template>
            </el-table-column>
            <el-table-column label="操作" width="180px" >
                <template slot-scope="scope">
                    <!-- 修改按钮 -->
                    <el-button @click="showEditDialog(scope.row.id)" size="mini" type="primary" icon="el-icon-edit"></el-button>
                    <!-- 删除按钮 -->
                    <el-button @click="removeUserById(scope.row.id)" size="mini" type="danger" icon="el-icon-delete"></el-button>
                    <!-- 分配角色按钮 -->
                    <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button @click="setRole(scope.row)" size="mini" type="warning" icon="el-icon-setting"></el-button>
                    </el-tooltip>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
        >
        <!-- 中文内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close = "editDialogClosed"
        >

        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" class="demo-ruleForm">
            <el-form-item label="用户名" prop="username">
                <el-input v-model="editForm.username"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDiaClosed">
        <div>
            <p>当前用户：{{userInfo.username}}</p>
            <p>当前角色：{{userInfo.role_name}}</p>
            <p>分配新角色：
                 <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                    </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
            <el-button @click="setRoleDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
    data(){
        //验证邮箱规则
        var checkEmail = (rule,value,cb) => {
            const regEmail = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
            if(regEmail.test(value)){
                return cb()
            }
            cb(new Error('请输入正确邮箱'))
        }
        //验证手机规则
        var checMobile = (rule,value,cb) => {
             const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
             if(regMobile.test(value)){
                return cb()
            }
            cb(new Error('请输入正确手机号'))
        }
        return{
            //get用户列表参数对象
            queryInfo:{
                query:'',
                //当前页数
                pagenum:1,
                //当前每页显示多少条数据
                pagesize:2
            },
            userlist:[],
            total:0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //添加用户的数据
            addForm:{
                username:'',
                password: '',
                email:'',
                mobile:''
            },
            //添加用户验证规则
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名', trigger:'blur'},
                    {min:3,max:10,message:'用户名长度在3-10个字之间', trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入用密码', trigger:'blur'},
                    {min:5,max:15,message:'用户名长度在5-15个字之间', trigger:'blur'}

                ],
                email:[
                    {required:true,message:'请输入邮箱', trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                   
                ],
                mobile:[
                    {required:true,message:'请输入手机号', trigger:'blur'},
                    {validator:checMobile,trigger:'blur'}

                ]
            },
            //控制修改用户对话框显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象在修改对话框中显示
            editForm:{},
            //修改表单验证规则
            editFormRules:{
                email:[
                    {required:true,message:'请输入邮箱', trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}

                ],
                mobile:[
                    {required:true,message:'请输入手机号', trigger:'blur'},
                    {validator:checMobile,trigger:'blur'}

                ]
            },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible: false,
            //需要被分配权限的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            //已经选中的id值
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data: res} = await this.$http.get('users',{ 
                params: this.queryInfo 
            })
            if(res.meta.status !== 200) {
                return this.$message.error('获取用户列表失败')
            }
            this.userlist = res.data.users
            this.total = res.data.total
        },
        // 监听页面
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        //监听switch开关状态
        async userStateChanged(userinfo){
            const {data: res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功')
        },
        //监听添加用户对话框重置
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮添加用户
        addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid) return
                //客园发起添加用户请求
                const {data: res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !==201){
                    this.$message.error('添加用户失败！')                  
                }
                this.$message.success('添加用户成功！')
                //添加隐藏用户的对话框
                this.addDialogVisible = false
                //重新获取用户列表
                this.getUserList()
            })
        },
        //展示修改用户对话框
        async showEditDialog(id){
            const {data: res} =  await this.$http.get('users/' + id)
            if(res.meta.status !==200){
                return this.$message.error('查询用户失败')
            }
            this.editForm = res.data
            this.editDialogVisible = true
            console.log(id)
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                const {data: res} = await this.$http.put('users/' +this.editForm.id,{
                    email: this.editForm.email,
                    mobile: this.editForm.mobile,
                    
                })
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户失败！')
                }
                //关闭对话框
                this.editDialogVisible =false
                //刷新数据
                this.getUserList()
                //提示修改成功
                this.$message.success('更新用户信息成功')
            })
        },
        //根据id删除用户信息提示
        async removeUserById(id){
            //弹框询问用户是否删除数据
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            //如果确认删除，返回字符串confirm，如果no，则返回cancel
            if(confirmResult !=='confirm'){
                return this.$message.info('已取消删除！')

            }
            const {data:res} = await this.$http.delete('users/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败！')
            }
            this.$message.success('删除成功！')
            this.getUserList()
        },
        //展示分配角色对话框
        async setRole(userInfo){
            this.userInfo = userInfo
            //在展示对话框之前，获取所有角色的列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error("获取角色列表失败")
            }
            this.rolesList = res.data

            this.setRoleDialogVisible = true
        },
        //点击分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色用户')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
                rid: this.selectedRoleId
            })

            if(res.meta.status !==200){
                return this.$message.error("更新角色失败")
            }
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        //监听分配角色对话框的关闭
        setRoleDiaClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>
